The last king of Scotland.

James McAvoy as Macbeth and Claire Foy as Lady Macbeth. Photograph: Johan Persson

MacbethTrafalgar Studios

Macbeth Trafalgar Studios James McAvoy’s Macbeth is blood-spattered from the moment he strides on to the small, constricted stage at the 400-capacity Trafalgar Studios, located a short walk from the political power play of Westminster. The stage has been raised and extended into the first four rows of seats. There are additional seats on the stage itself. The effect is one of intense claustrophobia and it’s as if, clustered so tightly around the players, the audience itself is implicated in Macbeth’s murderous crimes.

McAvoy has spoken of how playing the role of Macbeth is “like being mentally ill and being beaten up a lot”. Jamie Lloyd’s production is as visceral and boisterous as any I have seen. The emphasis is less on the poetry and the inner torment of Macbeth than on the externalities of action, combat and slaughter.

At various times, Macbeth vomits, bleeds and spits as he kills out of ambition and then keeps on killing, because he can, because he must. The sense of propulsion is all. In this version he is present at the murder of Macduff’s wife and children. In a gripping and desolate extended scene, he thrusts a knife into Macduff’s young son who is hiding beneath a table on top of which his mother lies dead, having just been strangled.

Macbeth has cropped hair, a thin gingery beard and a thick, muscular neck. He is young (McAvoy is 33) and highly mobile, skidding across the stage on his knees, descending from a ladder with the speed of a fireman. His accent, like most of the characters – with the baffling exception of Macduff – is generically Scottish. He dresses in steeltoe- capped boots, army fatigues and a mangy jumper that could have been borrowed from one of Beckett’s tramps. He is self-possessed but also self-doubting: he knows he is a usurper and that, no matter how much blood he spills, he too will be usurped. He understands what he has lost and how ultimately he is his own murderer.

McAvoy delivers the long, final soliloquy of self-recognition – “Tomorrow, and tomorrow, and tomorrow . . .” – sitting on a chair tilted slightly backwards, in a rare moment of repose. He is not melodramatically self-pitying, merely self-aware and resigned, and he cackles at the absurdity of it all and the meaninglessness.

The setting is the near future after some unexplained ecological catastrophe, in a ruined, now-independent Scotland (Alex Salmond take note). One feels keenly in mood and atmosphere the influence of Cormac McCarthy’s great dystopian novel The Road (2006), with its shattered landscapes and “days more gray each one than what had gone before”. The air is fetid and the interiors are dimly lit. The furniture is scarcely serviceable and the stage is as gory as a butcher’s shop. Even nature is eating itself.

The three witches, or weird sisters, first emerge from trapdoors beneath the stage in an opening sequence that never ceases to startle no matter how it is played or reinterpreted. The RSC production of Macbeth I saw at Stratford in 2011, set against the dissolution of the monasteries and the anti- Catholic pogroms of the Reformation, had not adults but three blonde children in the role of the witches. They entered suspended on wires from above, like macabre fairies, their voices echoing menacingly.

In Lloyd’s production some of the minor characters carry guns, while Banquo’s son wears headphones and is listening to music when Macbeth’s assassins strike. The three witches, who wear gas masks, appear to be looking at mobile computer screens when they first encounter Macbeth. It’s as if they’re reading the text of his future but, like mediums, can only speak in metaphor and riddles.

Yet, on the whole, technology seems to be no longer working or is of little use in this ravaged Scotland, “so afraid to know itself”. There are no telephones and Macbeth sends his wife not an email but a letter in which she reads his account of the witches’ strange prophecies. No sooner has she read the letter than Claire Foy’s Lady Macbeth is demanding to be “unsexed” as she readies herself for the diabolical deeds to come and for the violation of her own humanity.

It’s awkward, this sudden transition Lady Macbeth must undergo from good to evil, from reading her husband’s letter to persuading him there’s no alternative to killing a king, and Foy manages it well enough. It’s clear from the text of the play and from the interaction between husband and wife that the Macbeths have recently endured the death of a child. But one struggles to feel the pathos of their loss, partly because there’s little feeling of genuine erotic need or enraptured mutuality between McAvoy and Hoy, these co-conspirators and would-be king killers.

Lloyd’s Macbeth is the first in a season of works, some newly commissioned, that will explore the compulsions and compromises of power at the Trafalgar, “just a few steps away from the centre of British politics”. They’ve started well.